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第二部分阅读判断阅读下面的短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断，如果该句提供的是正确信息，就选A；如果该句提供的是错误信息，就选B；如果该句的信息文章中没有提及，就选C。第一篇InventorofLEDWhenNickHolonyaksetouttocreateanewkindofvisiblelightingusingsemiconductoralloys,hiscolleaguesthoughthewasunrealistic.Today,hisdiscoveryoflight-emittingdiodes,or1LEDs,areusedineverythingfromDVDstoalarmclockstoairports.Dozensofhisstudentshavecontinuedhiswork,developinglightingusedintrafficlightsandothereverydaytechnology.OnApril23,2004,Holonyakreceivedthe$500,000Lemelson-MITPrizeataceremonyinWashington.Thismarksthe10thyearthattheLemelson-MITProgramattheMassachusettsInstituteofTechnology(MIT)hasgiventheawardtoprominentinventors.“Anytimeyougetanaward,bigorlittle2,it’salwaysasurprise.”Holonyaksaid.Holonyak,75,wasastudentofJohnBardeen,aninventorofthetransistor,intheearly1950s.Aftergraduateschool3,HolonyakworkedatBellLabs.HelaterwenttoGeneralElectric4,whereheinventedaswitchnowwidelyusedinhousedimmerswitches5.Later,Holonyakstartedlookingintohowsemiconductorscouldbeusedtogeneratelight.Butwhilehiscolleagueswerelookingathowtogenerateinvisiblelight,hewantedtogeneratevisiblelight.TheLEDsheinventedin1962nowlastabout10timeslongerthanincandescentbulbs,andaremoreenvironmentallyfriendlyandcosteffective.Holonyak,nowaprofessorofelectricalandcomputerengineeringandphysicsattheUniversityofIllinois,saidhesuspectedthatLEDswouldbecomeascommonplaceastheyaretoday,butdidn’trealizehowmanyusestheywouldhave.“Youdon’tknowinthebeginning.Youthinkyou’redoingsomethingimportant,youthinkit’sworthdoing,butyoureallycan’ttellwhatthebigpayoffisgoingtobe,andwhen,andhow.Youjustdon’tknow.”hesaid.TheLemelson-MITProgramalsorecognizedEdithFlanigen,75,withthe$100,000Lemelson-MITLifetimeAchievementAwardforherworkonanewgenerationof“molecularsieves,”thatcanseparatemoleculesbysize.词汇：semiconductor/n.半导体incandescent/adj.白炽的alloy/n.合金bulb/n.灯泡emit/v.发射，发出commonplace/adj.普通的diode/n.二极管molecular/adj.分子的dim/adj.灯光昏暗的sieve/n.筛注释：1.or：即2.bigorlittle：不论是大是小3.aftergraduateschool：从研究生院毕业之后4.GeneralElectric：通用电气公司5.housedimmerswitches：家用减光开关第二篇ElNinoWhilesomeforecastingmethodshadlimitedsuccesspredictingthe1997ElNinoafewmonthsinadvance1,theColumbiaUniversityresearcherssaytheirmethodcanpredictlargeElNinoeventsuptotwoyearsinadvance.Thatwouldbegoodnewsforgovernments,farmersandothersseekingtoplanforthedroughtsandheavyrainfallthatElNinocanproduceinvariouspartsoftheworld.Usingacomputer,theresearchersmatchedsea-surfacetemperaturestolaterElNinooccurrencesbetween1980and2000andwerethenabletoanticipateElNinoeventsdatingbackto1857,usingpriorsea-surfacetemperatures.TheresultswerereportedinthelatestissueofthejournalNature.Theresearcherssaytheirmethodisnotperfect,butBryanC.Weare,ameteorologistattheUniversityofCalifornia.Davis,whowasnotinvolvedinthework,saidit“suggests2ElNinoisindeedpredictable.”“Thiswillprobablyconvinceotherstosearcharoundmoreforevenbettermethods,”saidWeare.Headdedthatthenewmethod“makesitpossibletopredictElNinoatlongleadtimes3.”Othermodelsalsousesea-surfacetemperatures,buttheyhavenotlookedasfarbackbecausetheyneedotherdata,whichisonlyavailableforrecentdecades,Wearesaid.TheabilitytopredictthewarmingandcoolingofthePacificisofimmenseimportance4.The1997ElNino,forexample,causedanestimated$20billionindamageworldwide,offsetbybeneficialeffectsinotherareas,saidDavidAnderson,oftheEuropeanCentreforMedium-RangeWeatherForecastsinReading,England.The1877ElNino,meanwhile,coincidedwithafailureoftheIndianmonsoonandafaminethatkilledperhaps40millioninIndiaandChina,promptingthedevelopmentofseasonalforecasting,Andersonsaid.WhenElNinohitin1991and1997,200millionpeoplewereaffectedbyfloodinginChinaalone,accordingtoa2002UnitedNationsreport.WhilepredictingsmallerElNinoeventsremainstricky,theabilitytopredictlargeronesshouldbeincreasedtoatleastayearifthenewmethodisconfirmed.ElNinotendstodevelopbetweenAprilandJuneandreachesitspeakbetweenDecemberandFebruary.Thewarmingtendstolastbetween9and12monthsandoccurseverytwotosevenyears.ThenewforecastingmethoddoesnotpredictanymajorElNinoeventsinthenexttwoyears,althoughaweakwarmingtowardtheendofthisyearispossible.词汇：EINinon.厄尔尼诺现象offset/v.抵消equatorial/adj.赤道的lead/adj.领先的occurrence/n.发生monsoon/n.季风meteorologist/n.气象学家tricky/adj.难以捉摸的注释：1.…methodshadlimitedsuccesspredictingthe1997EINinoafewmonthsinadvance：predictingthe1997EINinoafewmonthsinadvance是现在分词短语，进一步说明limitedsuccess的含义。2.suggests:suggest在文中的意思是“表明，显示出”。3.atlongleadtimes:lead的意思相当于inadvance。atlongleadtimes的意思是“在领先很长的一段时间里”。4.ofimmenseimportance=immenselyimportant第三篇SmokingSince1939,numerousstudieshavebeenconductedtodeterminewhethersmokingisahealthhazard.Thetrendoftheevidencehasbeenconsistentandindicatesthatthereisaserioushealthrisk.Researchteamshaveconductedstudiesthatshowbeyondallreasonabledoubtthattobaccosmokingisassociatedwithashortenedlifeexpectancy1.Cigarettesmokingisbelievedbymostresearchworkersinthisfieldtobeanimportantfactorinthedevelopmentofcancerofthelungsandcancerofthethroatandisbelievedtoberelatedtocancerofsomeotherorgansofthebody.Malecigarettesmokershaveahigherdeathratefromheartdiseas